William b



w s. HARSEL. MARKER FOR TIRES.

APPLICATION FILED DEC.22. 1917- Patented Dec. 2, 1919.

PV/ll/ehn BAQ-Gel,

UNITED STATES PATENT OFFICE.

WILLIAM B. HARSEL, OF AKRON, OHIO, ASSIGNOR TO THE GOODYEAR TIRE aRUBBER/ COMPANY, OF AKRON, OHIO, A CORPORATION OF OHIO.

MARKER FOR TIRES.

' Specification of Letters Patent. Patented Dec; 2, 1919,.

Application filed December 22, 1917. Serial No. 208,428. v

To all whom it may concern:

Be it known that 1, WILLIAM B. Hansen,

a citizen of the United States, residing at Akron, in the county ofSummit and State of Ohio, have invented new and useful Improvements inMarkers for Tires, of which the following is a specification.

' actor of a scriber or marker, whereby a I with light lines.

mark or plurality ofmarks are scribed on the carcass at predeterminedolnts.

Another object is to combine the above operation with one of thenecessary operations essential to the building of a carcass, therebyrelieving the operator from the-performance of an excess number ofsteps.

A still further object therefor is to provide an apparatus automatic inaction and at the same time capable of convenient and speedy adjustmentto overcome any difliculties that may 'arise.

The above and additional objects of a similar nature, which will behereinafter more specifically treated, may beaccom plished by such meansas are illustrated in the accompanying drawings, described in thefollowing specification, and then more particularly pointed out in theclaims which are appended hereto and form a part of this application.

With reference to the drawing, wherein there has been illustratedapreferred embodiment of the invention as it is reduced to practice, andthroughout'the several views of which, similar reference numbersdesignate corresponding part-z Figure 1 is a front elevation of mydevice as applied toa foot actuated trin-nning knife, the carcass beingshown in dottedlines;

Fig. 2 is a side elevation;

Fig. 3 is a vertical section of one of, the marking elements; and I Fig.4 is an end view of same.

In applying my device to a tire building machine, I have in theembodiment herein disclosed applied it to a set of foot operatedtrimming knives indicated in the drawings This trimmin mechanism issuitably mounted upon t e main frame of the machine with its centralaxis located radially with respect to the core and preferably in linewith the vertical axis ofthe core to i allow the forces of gravitytoreturn the trimmers to their inoperative position.

The trimming knives .1 and 2 are pivotally connected to the knifecarrying frame 3 by pivots 4 and 5 and connectedby suit able linkconnections 6 to the foot pedal 7,

which is pivot 8.

From the foregoing it will be seen that pivoted also to the frame oytheany downward pressure of the lever 7 v will cause the knife units 1 and2 to be brought 1nt o engagement with the the carcass at the properpoint, and a further pressure of the" lever 7 will cause fabric asrequired.

Mounted on the trimming knives is a the knives to sever the pair ofsegmental castings 9 and-10, consisting of a body portion 11 and twopro-' jecting'lugs'12 adapted to be'boltedto the;

knives 1 and2- respectively. These castings are mounted in the correctrelation in respect to .the ring core and tire carcass there- Y on, sothat when the knives are brought into the cuttlng position the markerunits 13 willbe brought into contact with the outer. layer of thecarcass, as will be more readily" understood.

In Fig. 3 will be seen a vertical section of one of these marker units13 which "con sists of a cylindrical portion 14,- with an inl terrorchamber 15, an enlarged extremity 16 and an inclosed end.17, a stylus 21and locking means 24jand 25 for securing the marker.

to the castings Qand- 10.

The enlarged portion of the cylinder 14 is internally screw threaded andadapted to receive a screw threaded l 18, having 1,

centrally located bore .19.

portion 1.7 has a centrally cut-slot 20adapt -j ed to receive a wedgeshaped end portiofn 21' of the stylus 21. The, body portion of thestylus 21 e6 1? sists of a cylindricalv shaped rod 22,1cen

trally located within the bore 15 of the cyl inder 14, and is slidablymounted at one en in the aperture 19 of theplu-g 18.

Between the wedge-shaped end portion I' I 21 of the stylus 21 and thebody portion 22 is an annular flange 22 adapted tobeaf against the innersurface of the end wall 17 the result of which will be apparent.

To'retain the stylus in an extended posi- I tion, a suitable spring 23is mounted inside the cylinder surrounding the body portion 22 andadapted to abut against the inner surface of the plu 18 and the flange22;

The marker units 13 respectively are mounted in adjusting slots 26 inthe castlngs 9 and 10 by clamp nuts 2% and 25 which encircle the bodyportion of the cylinder 14 and clamp the opposite sides of the castingsbetween them.

The operation of my device is as follows:

Assuming that the carcass has been built up to the required size andnumber of plies, the next operation would be to trim off the excessfabric below the toe of the bead. The operator would put his foot on thepedal 7 thereby causing-the knives to engage the fabric and trim same.The marking ,elements 13 would also be brought into engagement with theside Walls of the carcass and upon revolving the core would score thesurface of the outer ply sufliciently to guide the tireifinisherto applyhis finishing strips at the correct places. The operator upon removin-his foot from the lever 7 will release 1; e trimming knives and markersout of engagement and allow them to assume their idle position.

It will be readily seen that as the trimming knives wear down fromconstant use,

the spring actuated stylus will retard suf-' ficiently so as not tobruise or cut the carcass, thereby defeating the purpose of thisinvention.

What I claim is: I

1. In a tire carcass building machine, a power driven ring core, meansfor scribing a plurality of marks upon the tire carcass and means formoving said scribing means into and out of engagement with the said tirecarcass.

2. In a tire carcass building machine the combination with a trimmingdevice IIIOV- able against the tire carcass, of means for scribing aplurality of marks upon the tire carcass, and means for moving saidscribing means into and out of engagement with the tire carcasssimultaneously with said trimming device.

3. Ina tire carcass building machine, a power driven in core, a pair ofmarking elements mounte upon said machine and positioned in correctrelation in respect to the mug core and means for moving said markinelements into and out of engagement with the tire carcass while mountedon said ring core.

4. In a tire carcass building machine provided with trimming mechanism,a pair of marking elements mounted upon the triming mechanism andadapted to be moved into and out of engagement with the tire be movedinto and out of engagement with the said tire carcass simultaneouslywith said trimming mechanism.

(5.111 a tire carcass buihfling machine prorided with a trimming devicemovable relatively to the tire carcass, a pair of markin elementsmounted upon the said tire machine .and on the opposite sides of thetire carcass, said marking elements being mounted. adjustably withrespect to each other and radially to the core and adapted to be movedinto and out of engagement with the the carcass simultaneously with saidtrimming device.

7. In a tire carcass building machine provided with a trimming devicemovable relatively to the tire carcass, means carried by said trin'nningdevice for marli'ing the tire carcass.

8. Means for marking a rotatably arranged tire carcass, comprisingmarking units disposed at one side of the tire carcass, and means tomove said markingunits into contact with said tire carcass.

9. Means for marking a rotatably arranged tire carcass, comprising aframe provided with-a slot, marking units adjustably arranged in saidslot, and means to operate said frame to move said marking units intocontact with said tire carcass.

10. Means for marking a rotatably arranged tire carcass, comprising aframe provided with a slot, relatively adjustable spring-pressed markingstyli arranged in said slot, and means to operate said frame to movesaid marking styli into contact with the tire carcass.

In testimony whereof, I have signed my name in the presence of twosubscribing witnesses.

WILLIAM B. HARSEL. Witnesses: R. S. Tnosnnn, B. J. MCDANEL.

